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authorK. Y. Srinivasan2011-06-07 00:49:51 +0200
committerGreg Kroah-Hartman2011-06-07 22:45:55 +0200
commitef0d5b23022e207e9f367de52f4172daab3ac690 (patch)
treec30f8a7c81d32e75956d18489a0b9d011e5fa489 /drivers/staging/hv
parentStaging: hv: vmbus: Get rid of the poll timer in the channel state (diff)
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Staging: hv: vmbus: Fix the memory barrier in hv_ringbuffer_read()
Use the correct barrier interface. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Abhishek Kane <v-abkane@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/hv')
-rw-r--r--drivers/staging/hv/ring_buffer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/hv/ring_buffer.c b/drivers/staging/hv/ring_buffer.c
index 3da333018b5a..932af1a01a1e 100644
--- a/drivers/staging/hv/ring_buffer.c
+++ b/drivers/staging/hv/ring_buffer.c
@@ -513,7 +513,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info, void *buffer,
/* Make sure all reads are done before we update the read index since */
/* the writer may start writing to the read area once the read index */
/*is updated */
- mb();
+ smp_mb();
/* Update the read index */
hv_set_next_read_location(inring_info, next_read_location);